Sash-fastener.



No. 733,640. 'PATENTED JULY 14,1903. J. E. GIBBS.

SASH PASTENER.

APPLICATION FILED MAE. 4, 1903.

80 MODEL.

* Ulla J6 ll: Zifikfiifiuw 1mm "I II! 1 p 1 4' 7 W n4: ucmms versuscomum'mrmn" wumumon n c UNITED STATES Patented July 14, 1903.

PATENT OTFICE.

JAMES EDWIN GIBBS, OF BRIDGEWATER, VIRGINIA, ASSIGNOR TO WM. A. BYERLYAND E. X. MILLER, OF BRIDGEWATER, VIRGINIA.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 733,640, dated July 14,1903.

Application filed March 4, 1908.

To all whom it may concern:

Be it known that 1, JAMES EDWIN GIBBS, a citizen of the United States,residing at Bridgewater, in the county of Rockingham and State ofVirginia, have invented a new and useful Sash-Fastener,of which thefollowing is a specification.

The invention relates to improvements in sash-fasteners.

The object of the present invention is to improve the construction ofsash-fasteners and to provide a simple, inexpensive, and efficientdevice of great strength and durability adapted to be readily applied toa sash and capable of operating effectively whether a sash be loose ortight.

A further object of the invention is to provide a sash-fastener of thischaracter adapted to permit a sash to be raised freely and capable ofoperating automatically to look a sash against downward movement,whereby the same is held at any desired adjustment and is prevented fromfalling.

Furthermore, the invention has for its object to provide a sash-fastenerwhich may be readily arranged to look a sash against either upward ordownward movement.

With these and other objects in view the invention consists in the novelconstruction and arrangement of parts hereinafter fully described,illustrated in the accompanying drawings,and pointed out in the claimshereto appended, it being understood that changes in the form,proportion, and minor details of construction may be made within thescope of the claims without departing from the spirit or sacrificing anyof the advantages of the invention.

In the drawings, Figure l is an elevation of a sash-fastenerconstructed-in accordance with this invention and shown applied to aportion of a window. Fig. 2 is a vertical sectional view of thesash-fastener. Fig. 3 is a vertical sectional view taken. at rightangles to Fig. 2. Fig. 4. is a horizontal sectional view. Fig. 5 is adetail view of the body portion of the casing. Fig. 6 is a detailperspective view of the toothed locking device. Fig.

$erial No. 146,169. (No model.)

7 is a detail view of the back plate of the casing.

Like numerals of reference designate corresponding parts in all thefigures of the drawings.

1 designates a lock-casing of oblong shape consisting, preferably, of abody portion and a removable back plate 2, fitted within the bodyportion and supported by corner-lugs 3. The body portion of the casingis provided at the top and bottom with perforated ears or flanges 4 forthe reception of screws or other suitable fastening devices for securingthe casin g to a window-sash 5. The fastening devices 6 may be utilizedfor retaining the parts in position when the sash-fastener is in use;but the back plate may be detachably or otherwise secured to the bodyportion of the casing in any suitable manner, as will be readilyunderstood. The casing is provided at the outer edge with a slot oropening '7, through which a gear-wheel 8 extends, and the saidgear-wheel is provided with suitable projecting hub portions ortrunnions 9,-which are arranged in inclined ways 10 and 11 of the frontand back plate of the casing. The ways incline downwardly toward a rack12, with which the gear-wheel meshes, the gearwheel being normallymaintained in mesh with the rack by gravity, whereby it is adapted toadjust itself automatically to the rack to enable the sash-fastener tooperate on tight and loose sashes. The inclined way 10, which is locatedat the inner face of the front plate of the casing, preferably consistsof a groove or recess, and the said front 1 mately inclined edge havinga plurality of spur-teeth let to mesh with the gear-wheel,

whereby when the sash is moved downwardly therotation of the gear-wheel,which is continuously in engagement with the locking device, will carrythe latter downwardly. The downward movement of the locking deviceforces the gear-wheel tightly in engagement with the rack -bar andprevents the gearwheel from rotating, whereby the sash is securely heldagainst downward movement and is firmly supported at the desiredadjustment. The upward movement of the sash rotates the gear-wheel inthe reverse direction and auto matically releases the locking device,when the latter is free to move. The toothed looking device, which maybe guided in any desired manner, has a straight vertical edge 15 fittedagainst the inner side wall of the easing, and the lower end of thelocking device is provided with a projection or flange 16, which fits ina longitudinal groove 17 of the inner face of the front wall of thelock-casing. The groove 17 forms a guide or way for the toothed lockin gdevice, which is also connected with a stem or pivot of a catch 19. Thestem or pivot 18 is arranged in a perforation of the toothed lockingdevice at the upper end thereof, and the catch, which is provided withan exterior thumb-piece or grip 20, has opposite shoulders 21, slightlysloping, as shown, and adapted to engage inclined walls 22 of the frontwall of the lockcasing. The inclined walls are located at opposite sidesof a vertical slot 23 and are formed by undercutting the edges of theplate at the slot, as shown, the plate being enlarged to providesufficient material thereat. shaped catch 19 is adapted to be arrangedlongitudinallyof the slot to permit the toothed locking device to movefreely, as indicated in Fig. 3 of the drawings; but when it is desiredto lock the sash against upward and.

downward movement the wedge-shaped catch 19 is turned transversely ofthe vertical slot, as indicated in Fig. 4, whereby the wedgeshaped catchis forced inwardly and is adapted to clamp the toothed locking devicesagainst the rear plate of the lock-casing. The inclined edges of thelock-casing and the sloped shoulders of the catch form cams or wedgesfor forcing the locking device against the lock-casing. When the catchis arranged longitudinally of the vertical slot, as shown in Fig. 3, thesash is adapted to be raised freely, but will be held against downwardmovement by the automatic operation of the sash-fastener. The rackconsists of a toothed bar secured to the window-frame, as clearly shownin Fig. 1.

What I claim is- 1. A device of the class described, com prising a rack,a gear meshing with the rack and capable of inward and outward movement,and a toothed locking device meshing with the gear-wheel and arranged tolock the same The wedgeautomatically when a sash is moved downwardly andadapted to release the gear-wheel when the sash is moved upwardly,substantially as described.

2. A device of the class described comprising a gear, a rack, a toothedlocking device normally meshing with the gear and arranged to lock thesame automatically to prevent a sash from moving downwardly, and meansfor lockin g the said device against movement, substantially asdescribed.

3. A device of the class described comprising a rack, a gear capable ofinward and outward movement, a toothed locking device normally engagingthe gear and capable of upward and downward movement,and a catch forholding the locking device against movement, substantially as described.

4. A device of the class described comprising a casing, a rack, agear-wheel meshing with the rack and capable of inward and outwardmovement, a toothed locking device arranged within the casing andengaging the gear-wheel, a catch arranged to engage the casing and thelocking device, one of the parts forming a wedge, whereby the lockingdevice is clamped against movement in either direction, substantially asdescribed.

5. A device of the class described comprising a rack, a casing, a rotarygear guided in the casing and having a limited outward and inwardmovement, and atoothed locking device meshing with the gear and havingan upward and downward movement, substantially as described.

6. A device of the class described comprising a casing having a slot oropening and provided thereat with an inclined edge,a gearwheel, alocking device movably mounted in the casing and engaging thegear-wheel, and a catch connected with the locking device and arrangedto engage the inclined edge of the casing, whereby the locking device isclamped against movement, substantially as described.

7. A device of the class described compris ing a casing having anopening and provided at opposite sides thereof with inclined edges, agear-wheel, a locking device arranged to engage the gear-wheel and acatch pivotally connected with the locking device and operating in theslot or opening of the casing and provided with shoulders arranged to beturned into and out of engagement with the saidinclined edges,substantially as described.

8. A device of the class described comprising a casing having an openingand provided with inclined guides, a gear-whee1 journaled in the guidesand capable of inward and outward movement, a toothed locking devicemeshing with the gear-wheel, and a catch connected with the lockingdevice and op erating in the opening of the casing and provided withmeans for engaging the latter, whereby the locking device will be heldagainst movement,substantially as described.

9. A device of the class described compris- In testimony that I claimthe foregoing as ing a casing having a groove, a gear-wheel my own Ihave hereto affixed my signature in 10 mounted in the casing and havinga limited the presence of two witnesses. inward and outward movement, atoothed locking device meshing with the gear and JAMES EDVIN GIBBSprovided with a projection guided in the said groove, and means foroperating the locking device, substantially as described.

Witnesses:

NELLE WHITMORE, S. G. DINKEL.

